668640674

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1\times {\mathrm{10501}}^1$

素因数の和:10626

約数の個数: 32

約数和(自身を含む): 1129175040

約数和(自身を除く): 460534366

約数列:

[1, 2, 13, 26, 31, 62, 79, 158, 403, 806, 1027, 2054, 2449, 4898, 10501, 21002, 31837, 63674, 136513, 273026, 325531, 651062, 829579, 1659158, 4231903, 8463806, 10784527, 21569054, 25716949, 51433898, 334320337, 668640674]

約数ペア:

[(1, 668640674), (2, 334320337), (13, 51433898), (26, 25716949), (31, 21569054), (62, 10784527), (79, 8463806), (158, 4231903), (403, 1659158), (806, 829579), (1027, 651062), (2054, 325531), (2449, 273026), (4898, 136513), (10501, 63674), (21002, 31837)]